Nearkii Fit Guide
Find Your Spare Tire Cover Size
Enter the code printed on your tire. We will tell you which cover size to choose.
1
Enter your tire size
Copy the complete code printed on the tire sidewall.
255Tire width
70Sidewall ratio
18Wheel size
2
Your tire measurements
Detailed specifications calculated from the tire size entered above.
- Overall diameter
- 32.06 in
- Sidewall height
- 7.03 in
- Circumference
- 100.72 in
- Revolutions per mile
- 629
3
Suggested spare tire cover
Optional recommendation for 255/70R18
Recommended size
17 inch cover
Based on an overall tire diameter of 32.06 inches.
This cover fits tire diameters from 31.0" to 32.6".
Shop 17 inch covers
Measure straight across the outside of your spare tire before ordering.
4
Compare two tire sizes
Use this section only when changing from one tire size to another.
✓
Diameter change is within 3%
The new tire is 1.4% smaller.
- Current diameter
- 32.06 in
- New diameter
- 31.61 in
- At 60 mph
- 59.2 mph actual
5
Spare tire cover size guide
Choose a cover based on the full outside diameter of the tire.
14" coverFor 23.0–26.9" tires
15" coverFor 27.0–28.9" tires
16" coverFor 29.0–30.9" tires
17" coverFor 31.0–32.6" tires
18" coverFor 32.7–33.9" tires
19" coverFor 34.0–36.0" tires